Yukiko Inui of Japan won the first gold medal of the International Swimming Federation World Championships in the artistic swimming solo technical event ©Getty Images

Photo gallery

Marta Fiedina claimed silver for Ukraine in the artistic gymnastics solo technical competition ©Getty Images
Marta Fiedina claimed silver for Ukraine in the artistic gymnastics solo technical competition ©Getty Images
Newly elected Hungarian President Katalin Novák welcomed those who travelled to Budapest for the FINA World Championships at the Opening Ceremony ©Getty Images
Newly elected Hungarian President Katalin Novák welcomed those who travelled to Budapest for the FINA World Championships at the Opening Ceremony ©Getty Images
The World Championships in Budapest, organised in addition to next year's delayed edition in Fukuoka, are Husain Al-Musallam's first as FINA President ©Getty Images
The World Championships in Budapest, organised in addition to next year's delayed edition in Fukuoka, are Husain Al-Musallam's first as FINA President ©Getty Images
Elijah Winnington of Australia, centre, edged a close contest with Germany's Lucas Märtens, left, to take the first swimming gold of the Championships in the men's 400 metres freestyle ©Getty Images
Elijah Winnington of Australia, centre, edged a close contest with Germany's Lucas Märtens, left, to take the first swimming gold of the Championships in the men's 400 metres freestyle ©Getty Images
The United States' Katie Ledecky set a FINA World Championships record in the women's 400m freestyle ©Getty Images
The United States' Katie Ledecky set a FINA World Championships record in the women's 400m freestyle ©Getty Images
Katie Ledecky of the US remains the most-decorated female athlete at the FINA World Championships, taking her gold medal haul up to 16 ©Getty Images
Katie Ledecky of the US remains the most-decorated female athlete at the FINA World Championships, taking her gold medal haul up to 16 ©Getty Images
Léon Marchand of France, centre, stormed to victory in the men's 400m individual medley in World Championships record time ©Getty Images
Léon Marchand of France, centre, stormed to victory in the men's 400m individual medley in World Championships record time ©Getty Images
Brooks Curry, furthest left, Justin Ress, second left, Ryan Held, second right, and Caeleb Dressel, furthest right, collected gold for the US in the men's 4x100m freestyle relay ©Getty Images
Brooks Curry, furthest left, Justin Ress, second left, Ryan Held, second right, and Caeleb Dressel, furthest right, collected gold for the US in the men's 4x100m freestyle relay ©Getty Images
Australia claimed women's 4x100m freestyle relay gold courtesy of Shayna Jack, furthest left, Meg Harris, second left, Madison Wilson, second right, and Mollie O'Callaghan, furthest right ©Getty Images
Australia claimed women's 4x100m freestyle relay gold courtesy of Shayna Jack, furthest left, Meg Harris, second left, Madison Wilson, second right, and Mollie O'Callaghan, furthest right ©Getty Images